Multiple-brush selector.



J4 N. REYNGLDS.

MULTIPLE BRUSH SELECTOR. APPLILATION ULEB Nov. 1e. m12` Patented J une 2, 1914.

/7 Ve /7/0r: Jo/m /V Reyno/d5. by

Aff]

STATES PATENT QEEICE.

i JOHN NEVBERRY REYNOLDS, OF GREENWICH, CONNECTCUT, ASSIGNOR TO WESTERN ELECTRIC COMPANY, F NEW YORK, N. Y., A CORPORATION 0F ILLINOIS.

MULTIPLE-BRUSH SELECTOR.

specification of Letters Patent. Patented June 1914, A

Application filed November 16, 1912. Serial No. 731,772.l Y

To all whom 'it may concern.' Be it known that Ldoun'NnwsnRY'REYnoms, a citizen of the United States, residing at Greenwich, in the county of Fairfield and State 'of Connecticut, have invented a certain new and useful lmprovement in Multiple-Brush Selectors, of which the following is a full, clear,4 concise, and exact description. ,A 104 This invention -relates to switching apparatus for'use in automatic or Semi-automatic exchange systems, andmore particularly to those switches in which electro-magnetically controlled switching devices are. employed 15. andi'sadaptedlfor use either as afselector or afconnecto By means of this inyention a i switchY is"`"`rovided by which a lar'genumber nof" lines I may= be accurately, and rapidly served,v and. whereby any line may be reached "tln'oufflroiiebof a plurality-of;multiply connec-ie bru'liesu;ony common brush shaft, each brufsliA having cress to "a' particular group oflines'only. ,For thispurpose there is provided ajpanel board upon which a plu- :2`5 rality'of veticalfroivsiof sets f rstationary .terminal'sare 'inou'ntedi each row being dividediinto sections; lindeach section having agsetofcoperative normally inactive mov- 'able-fi brushes individual thereto', all the correspending brushes of each row being conneeted -iu multiple. These rows of terminals Yinayp'be 'multiplied horizontally across the panelto be accessible to as many individual switching mechanisms as may be necessary to handle thcgreatest. number of simultaneous calls.' Each set of brushes is carried by a separate brush carrier mounted on a longitudinally-movable brush shaft common lto Vthe entire group of brush sets corresponding 40 toa' single rou' of stationary terminals. ln accordance .vith this invention the terminals of any desired line are reached by tirst causingr the set ot' brushes. niving access to the section containing the desired line terminals to become active and then causing said set to traverse the terminals in this row untilI the desired terminals are reached. v

One of the objects of this invention resides in the improved means for uniting the correspondng brushes in the several sets in multiple andv for extending the telephone circuits to the multiply connected brushes.

Another object resides in the 'manner of mounting the brushes and i'n the means for rendering any desired brush active.

Other objects and advantages will appear as the description of the invention progrosses.. 41 Q In the embodiment of my Vinvention,'here 1n sh'own, all the brush carriers are tiXed to 60 the brush shaft to move therewith.v To each i brush carrier is pivotally secured a set of brushes 1n such a manner as to be normallyE rotated to a position to pass over the stat-ionary ter'minals without engagement there# 65 with. A brush selecting device is aprovided which is adapted to seize any desiredbrush set and cause the brushes thereof toassume a positionV in which theywill upon movement A of the brushshaftrtrverse'the stationarygw terminalsof theirffsection while@ the other?"v brush sets remain` inactive. This brush Selectingmeans comprises an outwardly ro- ]ecting trip lever on eachfbrush set, and) an auxiliary brush selecting rod parallel to the brush shaft, said rod being provided with a series of inwardly projectingV trip fingers,- one tor each brush seh-.arranged rvat progrcsslvely increasing distances 'above the normal 'position' of their respective triple-flo vers. These tripV fingers normally extend slightly to one side o the line of travel of the trip levers, means being provided whereby the trip rod may be momentarily .rotated to cause the fingers to intercept such line of travel. Thus it will beeen; that if during the upward movement olf the brush shaft, at the instant the trip lever of any desired brush occupies a position slightly lower than.

it-s respective trip finger, the trip rod is m0- 90 mentarily vrotated to tripping position, the trip finger of the rod will engage the trip lever of the desired brush set and the brushes will be drawn downwardly into operative position. 95

For a more detailed description of my invention reference is now made to the accompanying drawings in which- Figure 1 is a side elevation of one of my switching' devices with parts broken awav. 100 Fig. 2 is a section on the line 22 of Fig. .3. Fig. 3 is a side elevationof a portion of the operating shaft with 'a part broken away to .show the arrangement of the conductors therein, and also showing more clearly the manner of mounting the brush set thereon. Figs. 4 and 5 are 'a side elevation and a plan view respectively of the brush selectingr means in tripping position. Figs.'6 and 7 are a side elevation and a plan view respecgreater number of brushes, or by arranging chmsection. Y

'thlelgipparatus claimed `as my inven Ane han ,bfistationary terminals .are .in the'd awingff It is to be underthe stationary termiand live sections to ch sectioiia set of three E'areprovided, 2 Vand 3 "Shaadrdto enges@ ryterininals 5,; Giand 7 eisp'e'ctive Vsection only. ,ching apparatus conilp lift 8, slidably mounted Secured in the lframe members iii-the shaft are secured a plurality ,carriers 1 for each stationary een 110. .U l

cured t0 the'shaft by. means of frings 12 and the bolts 13. Each a fia,-pair-Qfzfoiitwardly projecting ars-i14f'and lbetween'whieh are secured helbrush'setsti-cture 16 by means ofthe lpivot boltl'7..V EachA brush Set comprises, in .raddition' to'"`the1brush.'supporting arms 18, l "19,12Q3a'nd 21,'Which'are 'separated from each other and roinfthe clamping plates 28 and 29 by the insulating plates 22 and from the ...pivot bolt 17 by theinsulating sleeve 23, a trip lever 24 having'a right angular extension 25. Each of the brush Varms has a right angular upward extension 2G ending in the soldering terminals 27. The several parts'of the brushvset just mentioned are l secured together by thepscrew 31,- an in- .Esulating sleeve I32being provided between 55 Said screw and the extensions on the brush supporting-arms. To hold the brush set in either itszoperative or inoperative position a spiralspring 3 3 is provided. This .spring is secured at one end to :rn outwardly extend- .infr lug '34.on the side plate 29,' and at the other end to an arm 40 on the brush carrier. A It is thus so arranged that when the brush set is raised to its inoperative position'the 'axis oi the springjvillassumc a position at Aone side of the pivot. bolt 17, and when the 'number of'V sections "and a correspondingly` the parts Land .toziiore clearly illustrate the rThs'efbrush carriers are notch is formed in each sleeve to receive 75 the pin 44 whereby the rotation of the sleeves on the rod is limited. Springs 4G are provided, each having one end secured gto' a fixed collar 43 and the other end to one of said sleeves resi'iectively in such a man- 50 ner as toA normally tend to rotate the sleeves vin a clock-wise direction as viewed from -cXtending outwardly therefrom. These-lin? gers are normally in alinement' with their 85 ends slightly back of theline of travel of the trip levers 24 asrshown' in d'ottedlines invr Fig. 5 and in solid lines in Fig. 2,andarc arranged, at progressively increasing dis-1f,

tanees above the normal position of their're# l90 spective trip levers. It willl now be seen'` that if the Shaft; is moved .upivarrgly iintilf` 'l the extension 2F on the trip-lever oVv any 'del sired brush set occupies :1 position in a,

plane immediately belowi'ts lrespective trip/g5 p finger and the trip rod is then rotated the," ,trip linger individual to' lthe selected .set

vin the sleeve 42. The other tri p'fiiigers will' not engage their respective trip levers at this time being positioned either above orv below the same, respectively.- but will pass through the line of travel ,of thetniplevers 105 to the other side thereof as" Shown insolid lines iii- Fig. 7. Upon lthe 'c ntinu'ed up'- ward inovenient of the brus brush set will be depressed to' operative po- 'sition and the trip levei-.passing from con- 110,

tact with the trip linger as shown in Fig. 6 will allo-w, the trip finger to be rotated to a positionin alinenient withithe other trip lingers ,by a spring 43. lVlien the brush stage.v the trip magnet 54 will be denergized and the trip rod will be returned to its normal position.

' Upon the lower end oi the shaft 41 is a wardly projecting pin 49. .Looselyg engaging-the pin 49 is the end of a rightfangular extension 50 on the lever 51. rI`his leverjis pivotally mounted at 52 and carries 'on one magnet 54. Thus it will` be seen that upon thev eneigixation of the electroinagnet 54 the" rod 41,v will be caused to rotate. For thepnrpose of returiiiiigthe rod 41- to its frame parallel to above. Each sleeve 42 has a trip 'finger 47 will engage the vertical portion ofits 'ie-.';: spectfi ve trip levfer 24 and will be retained in the line of travel thereof,'thelrod turning v100 shaft thev i.

.shaft has passed beyond its. brush selecting disk 48 having at one side'thereol'ian out- 120 Side thereof the armature Slof the electionormal position a spring 55 is provided hav- 130 p below' its i downward1y.pro]ecting lug 66 on the lever ing one end secured to the side of the disk 48 adjacent the shaft S, and the other end fixed to an ear 5G carried by the frame member 10.

Upon observing\the relation of the trip fingers to their respective trip levers at the moment the rod is rothted, it will be seen that due to the arrangei'nentof the lingers at different distances above the normal poh -sition of their coperating trip levers, only the finger related to the desired brush will be engaged by atrip lever as the other trip fi 1ers immediately' pass to the other side .of the line of travell of the trip levers. At this time some of the trip levers may lie above and some below their respectivetrip fingers', or all may lie above or all below depending on which -of the'severalbrush sets are selected. shaft may be continued until the desired ter' minals are reached.

The shaft is elevated -by its being gripped between the drive pulley or drum 57 on the 'constantly rotating shaft 58 and the idler 59 located on the opposite side of the pulley shaft.` The pulley 59.#,isvmounted ont-he v upperjend. rof-t securedstofthe lever 60 whichds pivotally frame member 61 and tothe levef62'fb 64 is.provided sonV the lever 62 to limitthe relative movementjofthe levers-s A spring 65 havinggon'e end secured to the leverGO pivot .point andthe other to `a 62 tends ltOr'etai'ixfthe lever 60 in engagement withgthefst'op 64.; The tension of this y poles 69 ofthe ,'tureQYl which"1s`norma1lyE held in its re- `-tracted position-by A to one end vof the h inagnet 7 0isj'an armashaftis'elevated to `cause the brushes of the sleetdisetwto traverse the terminals in its respective selection. f

Current for the clutch magnet may be controlled ,indirectly through the 'coperation of the wipers and 7J: with the intertransmit impulses to rupters and 76 and the conducting plate 77; The wiper 73 and the ipterrupter' 75 the sendingr m'erh'anism the pre- Yduring 'and the transmit (not shown) by means of which limina-ry movement of the shaft brush selection may be controlled saine wiper and the interrupter 76 i impulses to measure the travelof the selected brush set/over the terminaisni the manner vclearly disclosed m my cci-pendingr applica tion, Serial No. 637,435 tiled July 8, 1911.

n bythe denergization of the The upward movement of the ,pvivrotrpin The stoppin.

fa the levei adjacent' lVhile I have shown only one driving means for my shaft, in practice preferably two such driving means of differentspeeds will be employed as disclosed in my above mentioned co-pendiug application. then the desired terminal has been reached the lupward travelof the shaft will be arrested clutch magnet, held in its elevated position by the armature release pawll TSengaging the rack 79 on the shaft 8. This pawl is pivotally mounted in the frame at 80 and is urged towardy the rack by the springr S1. When release is desired, the elect-romagnet 82 is energized, retracting the armature pawl 78 'and the shaft is released and may be rethe' shaft being turned to normal by gravity or in any desired manner, Upon the return to normal of said shaft the actuated brush set is returned to its normal inoperative. position by engagement with the shoulder 89 on the guide strip 90. Thebrush shaft is hollow therein.. Branches from each of these wires are extended to the soldering;terminal's27 of eorrespo'ndmg .and the circuit wires 83-84+85 are located i,

connecting the 'corresponding brushes of all each f the conductors ,'83, yStand 65 "is secured to one of rigidly but insulativelysecured to the"brush shaft. These arms each carry a spring linger 87 adapted to slidably engage one ofthe inthe arms S6 respectively, g

`the sets .inm ultiple.y Another'braneli from L sulated conducting plates 88' respect-ively,`

thusproviding means whereby the telephone circuit maybe extended tothe brushes and the brushes' connected Jin` multiple ,without the use of the pair of wipersindividual'to i each brush as heretofore employed in similar constructions. y

l. In an automatic telephone switch, a brush shaft, a plurality of normallyv inactive brushes pivotally mounted thereon on axes transverse to the axis of said shaft, a brush selectingY .device and electromagnetic means for rotating'said device to render active a predetermined brush.

V2. In an automaticswitch, a row of stationary terminals divided into sections. a longitudinally movable brush s haftvparallel thereto, a plurality of normally inactive brushes, pivotally mounted on.said shaft` a i brush selectin;r derive, electromagnetic means for rotatingr said device to render active a predetermined brush and means for determining the time of such rotation. f

il.' ln au tionary terminals dividjed into sections, an axially movable brush shaft parallel thereto, a plurality of normally. inactive brushes pivotally mounted on said shaft (311 gvfg gt right angles thereto, va brush selectin;r device, electromagnetic means for rotating said device to renter active a predetermined automatic switch, a row of sta-V brush and means for determining the time of such rotation. l.

4. Iman-.automatic telephone switch, a longitudinally movable brush shaft, a plui rality of normally inactive brush sets secured thereto, a trip rod" rotatably mounted parat vlel'to said bruslrffshaft and means for ro- .Htating's'aid,trip'rod t ende'iaaetivea pre- "et minedubrushset i elephfone. switch, a

"haft, a plu` islsets pivot- V, vtatablein a com- Y p rip rod't'iotatably mounted parallel to" brush Shaft4 andwmeans for rotatimggsf` dtrip rod` tore-nder4 active a prdet ed brushfset."

.6.' utomaticsvvitchluglapparatus, a

"IV-'lidivided iilto. a pluralit,

' s `o`ndiiigplurality of normallyi'inactive l -of brushes pivotally mounted 0n said shaft' ya trip rod mountedjp rallel tosaid Isha'f redet brushk vset vement 'of vsaid shaftrto eterminedg brush amg-automatic' n ephv ongitudinallymovablefibushfslaft, a plurali't'yofbrush sets pivotally secured thereto, `45,aftrip"lever'rigidly secured t each 4brush -flset,`atrip rod parallel toi'said. shaft, a plu' rality oi. trip fingers onfsaidv rod and means Y orcausig'oneiof'said'trip fingers to operatively engage the trip'leverjofa predetermined l brush set 4:during the preliminaryV travelftliereoi A '9. "In"^"`an lautomatic Y swltch, a... brush'` shaft,

a plurality of normally'ihactivelbrilshes pivotally,mounted;thereon, anffoutwardly pros brush, a trip rod parallelffto'said shaft, Ia trip finger onsaid rod individuattoL each ne 1switch, al

`jecting trip lever rigidly' Vsecured-,to each trip lever but normally ont of the line of travel thereof, and means for causing a trip linger to intercept the line of travel of the trip lever of a predetermined brush set whereby said set may be'rendered active.

nally movable shaft, a plurality of normally inactive brush sets pivotally mounted thereon, an outwardly projecting trip'lever rigsaid rod for each trip lever, said fingefs being positioned at progressively increasing distances froml said trip levers and' out of the line of travel thereof, and means Whereby said rod may be momentarily' rotated duringT the movement of said sha/ft to effect operative engagement of a tripv finger with the trip leve;l of a predetermined set.

11. In an automatic switch,

inactive brush sets mounted thereon', an outwardly proJect-mg lever on each'vs'et, a

trip finger on said rod for each trip lever,

said fingers being arranged at progressively increasing distances from the normal posi- .tions of said trip levers and out of the lme the line of travel of their trip levers to t other side thereof.

levers, re-

sets,- trip fingers for 'said trp mit of the spectively, normally arrange ously movinv line of travetl, means for retaining one of said fingers in the line of travel of the trip and means whereby the remaining trip flugers pass through the line of travel to the other side thereof. i

In witness whereof, I'hereunto subscribe my name this V1912.-

JOHN NEWBERRY REYNOLDS. Witnessesz' W'. F. HOFFMAN,

O. D. M GUTHE.

line of travel thereof, nins forr simu1tane` said trip 'fingers into said l lever of a predetermined set to trip the same 10. In an automatie'switch, a longitudiidly secured to each set,ra rotatable trip rod parallel to said shaft, a trip finger on loiigitudinally movable shaft, a plurality of nQrmally v` rotatable trip rod parallel to said shaft, af

of travel thereof,V means whereby said rod may be rotated during the travel of said,v

:shaft to effect engagement of a trip finger `with the trip lever of a predetermined set,`i means whereby said finger is retained in the n line of travel of said lever and means whereby the lingers not thus engaged pass through Y 12. In a switch, a plurality of setsoflnog-.fs'' i mally inactive 'movable brushes, a support" therefor, a trip lever 'carried by each of said.A

14th day of November A. D., 

